"""
chen juan yi
"""
class Animal:
    def __init__(self,species,sound):
        if species in ['猫','狗','羊','猴子','老虎','大象']:
            self.species= species
            self.sound = sound
        else:
           self.species = None
           self.sound = None
    def speak(self):
       if self.species== None:
          print('游戏结束！')
          return False
       else:
           print(self.species,self.sound)
           return True
print('动物园里有什么？')
flag = True
while flag:
    s = input('请输入动物叫声(隔开):')
    listl = s.split('')
    animal = Animal(listl[0], listl[1])
    flag = animal.speak()